Zeta ASD1 User manual

Brand: Zeta

Model: ASD1

Category: Security device components

Type: User manual

ASPIRATED SMOKE DETECTOR

ASD1 (Single Channel)

INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS (CE)

1 INTRODUCTION

The ASD1 has provision for one or two conventional/analogue addressable

point detectors allowing for single, failsafe redundancy or mixed detection

strategies.

The airflow level is displayed on a 10 element bar graph with adjustments for

sensitivity and high/low flow thresholds. Flow failure is reported to the central

panel as a detector/zone fault or via separate volt-free contacts.

2 SYSTEM INSTALLATION

Remove the transparent cover using the special tool provided to unscrew the

tamper proof fasteners. Use the template provided to accurately position the

holes then secure the unit to a suitable surface through the 4 corner fixing

points. Ensure that the correct fasteners are used for the type of surface that

the unit is mounted on.

3 WIRING

For correct operation of the unit, it is essential that the case is fully sealed so

that air can only be pulled into the system through the aspirating pipe. For

this reason, all wiring must pass through the cable seals provided and no

additional holes should be made. In order to pass a cable through a seal it is

necessary to make a small hole in the centre of the seal with a pointed

implement (e.g. small screwdriver) and then force the cable through the hole

into the box. The small hole will expand to accommodate any cable diameter

from 4 to 10mm and then provide an airtight seal.

CAUTION! THE ASD1 SYSTEM HAS BEEN INDEPENDENTLY TESTED AND

CERTIFIED TO CEA4022 AND MUST BE INSTALLED IN STRICT COMPLIANCE

WITH THE INSTRUCTIONS BELOW IF THE CERTIFICATION IS TO BE

MAINTAINED

WARNING! THIS EQUIPMENT MUST BE INSTALLED BY A QUALIFIED

INSTALLER IN ACCORDANCE WITH ALL LOCAL AND NATIONAL

REGULATIONS

In order to gain access to the main circuit board for connection of the wiring it

is necessary to remove the display/detector mounting board, which is held in

place by the clear top cover. Care should be taken when removing the board

to ensure that the ribbon cable on the underside is not strained. The ribbon

cable may be removed from the connector on the underside of the board to

allow the board to be fully removed.

WARNING! TO PREVENT RISK OF ELECTRIC SHOCK, OR POSSIBLE

INJURY FROM THE ROTATION OF THE HIGH PERFORMANCE FAN, THE

SYSTEM SHOULD BE ISOLATED FROM THE SUPPLY WHEN THE TOP

COVER IS REMOVED

All connections to the main circuit board are to pluggable terminals that can

accommodate wire sizes up to 2.5mm

3.1 FIELD CONNECTIONS

LOOP OUT

( + - )

LOOP IN

( + - )

BAT

FUSE

BATTERY

+24V 0V

FAULT 2

NO COM NC

3.1.1 BATTERY

The ASD1 unit is designed to run from a nominal 24V DC

supply. The supply should be connected to the 2 way

‘BATTERY’ connector on the main circuit board ensuring

that the wires are correctly orientated. It is recommended

that the wires should be a minimum size of 16 x 0.25mm

(18AWG), or larger if the supply is further than 5m from

the system.

A ferrite core is provided for EMC compliance. This should be fitted to the

supply wiring as shown above.

The power requirements are dependant on the fan speed – see table in

Section 11.1 for details.

3.1.2 LOOP IN/LOOP OUT

The Loop In/Loop Out terminals are connected to the detector terminals on

the display board. This provides a convenient means of connecting the

loop/circuit wiring to the unit and allows the display and detectors to be

removed during servicing by simply disconnecting the ribbon cable.

The loop/circuit wiring can also be connected directly to the detectors if

required.

The connection to detector 1 terminal is via a relay contact that is closed

under normal operating conditions but open in the event of a flow/fan/power

fault. This takes detector 1 off the loop/circuit, which is interpreted by the

panel as a fault condition.

3.1.3 FAULT 2

In the event of a fault condition, the Fault 2 relay will change state. The

terminals provide for Normally Open (NO) or Normally Closed (NC) operation

and these can be wired using terminating resistors to simulate a zone fault

on a conventional control panel or via a loop interface module for an

analogue addressable panel.

4 POINT DETECTORS

Ensure that the selected detectors have sufficient sensitivity for the

application. See Section 5 below for further details of how dilution affects

detector sensitivity.

If the installation is to be in accordance with the CEA 4022 certification then

the detector must have been tested for use in the system. Please refer to the

list of approved detectors in Section 9.

4.1 BAFFLES

Due to the large variation in the sizes and shapes of point detectors it is

necessary to fit baffles to the ASD to ensure that the sampled air flow is

directed toward the detector. Each baffle is shaped to match a particular

model/range of detectors and simply clips into position in the slots provided

in the transparent lid.



THIS MODE OF OPERATION SHOULD ONLY BE USED IF THE UNIT IS FITTED

WITH 2 DETECTORS. IF A SINGLE DETECTOR IS USED THEN THE DETECTOR

MUST BE FITTED TO THE DETECTOR 2 POSITION



NO/NC REFERS TO THE UN-POWERED STATE OF THE RELAYS AND UNDER

NORMAL, NON FAULT, CONDITIONS NO IS CLOSED AND NC IS OPEN

4.2 DETECTOR INSTALLATION

One or two Conventional/Analogue Addressable Point Detectors are

mounted on the display/mounting board using the screws provided. The

detectors can then be wired to either the local terminals in the centre of the

detector mounting points (then to the loop/conventional circuit via the Loop

In/Loop Out terminals on the main circuit board) or directly to the

loop/conventional circuit with the wiring passing through the cut-outs on the

display/mounting board.

4.3 WIRING EXAMPLES

The following examples show typical installations for conventional and

analogue addressable detectors –

KEY – (1) Display/Detector Mounting Board (2) Main Circuit Board

(3) Ribbon Connector (4) Detector 1 Relay Contacts (5) Detector 1

(6) Detector 2 (7) Terminating Resistor (8) Loop Interface Module

(9) Addressable Loop/Conventional Circuit

4.3.1 ASD1 WITH SINGLE CONVENTIONAL DETECTOR

Detector MUST be fitted to position 2. Terminating resistor may be fitted to

position 1 if required.

LOOP IN (+)

LOOP IN (-)

LOOP OUT (+)

LOOP OUT (-)

BAT TERY +24V

BAT TERY 0V

1 2

4.3.2 ASD1 WITH 2 x CONVENTIONAL DETECTORS

Terminating resistor fitted to detector in position 1 if required.

LOOP IN (+)

LOOP IN (-)

LOOP OUT (+)

LOOP OUT (-)

BAT TERY +24V

BAT TERY 0V

1 2

4.3.3 ASD1 WITH 2 x ADDRESSABLE DETECTORS

Detectors wired directly to loop with Fault 2 relay connected to loop via

addressable module

BATTERY +24V

BATTERY 0V

1 2

FAULT 2

COM

4.3.4 SERIES OF ASD1 UNITS ON A CONVENTIONAL DETECTION CIRCUIT

Schematic shows first and last units. Zone circuit wiring returned from last

unit to first via Fault 2 relay contacts in each unit and terminating resistor

fitted to first unit as shown. Flow fault condition in any unit will break the

connection to the terminating resistor and indicate a zone fault without

affecting the operation of the detectors themselves

BATT ERY +24V

BATT ERY 0V

1 2

FAULT 2

COM

BATT ERY +24V

BATT ERY 0V

FAULT 2

COM

5 PIPE INSTALLATION

A simple guide to pipe installation follows with examples of standard

configurations and should contain all the information required for simple

installations based on the standard configurations.

Use 25mm (or ¾”) Red ABS pipe with sampling point holes drilled along its

length. The pipe run is terminated with an end cap that has a hole drilled in

its centre.

The position of each individual sampling point should be in accordance with

the rules for the positioning of point detectors. It is important to note that the

concentration of smoke on an individual sample point will be diluted by the

clean air from the other sample points and the end cap hole.

5.1 PIPE SPECIFICATION

For CEA4022 compliance, the pipe should be Red ABS to EN 50086-1

(Crush 1, Impact 1, Temp 33) with a nominal diameter of 25mm (or ¾”). The

sample pipe is normally supplied in 3 metre lengths and is cut as required

and joined by solvent welded sockets (permanent), or socket unions

(removable).

5.2 FIXINGS

The normal fixing methods are pipe clips, saddle clamps or even tie wraps.

Fixing centres are typically 1.5m apart.

5.3 HOLES

The sampling pipe is perforated with sampling holes and can either be pre-

drilled or drilled in situ. Care should be taken to avoid swarf entering the pipe.

Always blow compressed air through the pipe after drilling to clear any debris

before final connection to the equipment. In standard configuration, with pipe



REFER TO THE PIPE INSTALLATION MANUAL (AVAILABLE AS OPTIONAL CD-

ROM OR DOWNLOAD FROM FIRETRACER.COM) FOR DETAILED

INFORMATION AND MORE PRACTICAL EXAMPLES



THE ASD1 INLET PORT IS TAPERED TO ALLOW A PUSH FIT OF THE SAMPLING

PIPE. THE PIPE SHOULD BE CUT SQUARELY TO ENSURE A GOOD, AIRTIGHT

SEAL. SOLVENT ADHESIVE SHOULD NOT BE USED FOR THIS JOINT

THE PIPETRACER SOFTWARE (AVAILABLE AS OPTIONAL CD-ROM OR

DOWNLOAD FROM FIRETRACER.COM) SHOULD BE USED TO CALCULATE

TRANSPORT TIMES, DILUTION EFFECTS ETC. FOR ALL INSTALLATIONS

BEYOND THE SCOPE OF THIS GUIDE

hanging from ceiling, the holes should be placed underneath, so the smoke

can easily rise up into the hole.

5.4 END CAP

The end of the pipe is terminated with a cap, with a hole

drilled in its centre. If the end cap is not used, then

practically no air will be drawn through the side holes. If the

end cap does not have a hole then the contributions from

the side holes will tend to be very unbalanced.

5.5 BENDS

Bends are either 45 or 90 degrees. For the 90-degree bends, it is very

important that swept bends are used and not sharp elbows, as this will

introduce unacceptable pressure losses, and significantly increase the

response times from holes beyond the bend.

5.6 EXHAUST

In most installations the exhaust should be left open but there are some

circumstances when it may be necessary to connect pipe to the exhaust port

to divert the exhaust away from the location of the unit e.g. to reduce noise,

reduce risk of interference/deliberate obstruction, improved environmental

protection etc.

Pipe of the same specification as the sample runs should be used and its

length limited to a maximum of 10m to avoid significant reduction in the air

flow. Care should be taken to position the new exhaust outlet where it cannot

be accidentally or deliberately blocked.

5.7 FILTERS

The sampled air is passed through a 2 stage filter –

replacement order code FL55 - before entering the detector

chamber.

As standard, the filtration should be sufficient for all but

extremely dusty conditions where a Harsh Environment

Filter – order code FLU1 (3/4”) / FLU2 (25mm) - should be

fitted between the unit and the first sampling point.

5.8 STANDARD CONFIGURATIONS (Drawings not to scale)

5.8.1 Configuration 1

ASD1 with single pipe

5.8.2 Configuration 2

ASD1 with Tee and 2 pipes - Distance from unit to Tee must be <= 1m and

pipes should be balanced i.e. equal length and equal number of holes.

The use of additional bends as described in Section 5.5 will have a minimal

effect on performance – i.e. response time, of either configuration.

6 SETUP

6.1 DISPLAY FUNCTIONS

BARGRAPH of AIRFLOW SPEED

2, 3, 4

AIRFLOW OK - HIGH AIRFLOW - LOW AIRFLOW

5 POWER ON

6 GENERAL FAULT (Mains PSU Option Only)

7 MAINS FAILURE (Mains PSU Option Only)

8 BATTERY LOW (Mains PSU Option Only)

9 FAN FAULT

10 CODE ENTRY



THE PIPETRACER SOFTWARE SHOULD BE USED TO VERIFY THE

PERFORMANCE OF ANY NON-STANDARD CONFIGURATIONS OR WHERE

UNBALANCED PIPE RUNS ARE REQUIRED

SEE TABLE IN SECTION 9 FOR CEA 4022 HOLE AND PIPE LENGTH LIMITS

FOR CERTIFIED DETECTORS

11 UNLOCK

6.2 USER FUNCTIONS

Press and hold SELECT and CHANGE keys

simultaneously for 1 second to initialise function selection.

Press and release SELECT key to sequentially step

through functions.

Press and release CHANGE key to modify setting.

The relevant LED flashes continuously to indicate the

function selected.

1) Enter 3 digit access code - 510. Each number must be selected in turn.

e.g. press CHANGE six times to illuminate the number 5 LED on the

display then press SELECT etc. (CODE LED flashes – UNLOCK LED

illuminates on successful entry).

2) Set fan speed (POWER LED flashes)

3) Set sensitivity of bar graph to changes in airflow velocity (FLOW OK

flashes)

4) Select the BARGRAPH LED segment above which the FLOW HIGH LED

will be illuminated (FLOW HIGH flashes)

5) Select the BARGRAPH LED segment below which the FLOW LOW LED

will be illuminated (FLOW LOW flashes)

6) Calibrate flow sensors (FAN FAULT LED flashes). CHANGE key must be

pressed for at least 2 seconds to initiate the flow calibration process. FAN

and POWER LEDs flash to indicate calibration in progress. Fan is

temporarily stopped as part of the calibration process. The system will

reset and revert to normal operating mode when flow calibration is

completed.

Pressing the SELECT key for longer than 1 second when the unit is unlocked

will cause the unit to revert to normal operating mode.

6.3 SET-UP NOTES

The Fan Speed, Flow Limits and Flow Sensitivity need to be set for each

installation prior to Flow Calibration and testing. It is not possible to provide

the settings for all possible installations but the following guidelines should

assist in the commissioning of the unit.

6.3.1 FAN SPEED

The Fan Speed should be set as high as possible to achieve the fastest

transport time from the sampling point to the detectors, this is especially

important for longer pipe lengths and for installations that must conform to

the requirements of CEA4022 (see Section 9). There is, however, a balance

to be achieved between performance and the units power requirements and

reference should be made to the current consumption figures in the

specifications prior to setting this value. Fan speeds 3 and below should not

be used for standard configurations.

6.3.2 FLOW SENSITIVITY

This setting determines the systems responsiveness in reporting blocked

sampling points or broken pipes. The number of sampling points and fan

speed are the main factors to consider for this setting.

The following table shows typical settings for a variety of standard fan

speed/hole quantity combinations. Other speed/hole combinations should be

verified by testing during commissioning.

6.3.2.1 TYPICAL FLOW SENSITIVITY SETTINGS

PIPE SETUP

(all 50m lengths unless otherwise stated)

RECOMMENDED

FAN SPEEDS

FLOW

SENSITIVITY

13 x 3mm Sampling Holes, 1 x 6mm End Hole 9 9

8 x 3mm Sampling Holes, 1 x 6mm End Hole 6-9 9

4 x 3mm Sampling Holes, 1 x 6mm End Hole 6-9 7

1 x 5mm Sampling Hole, 1 x 5mm End Hole 6-9 5

1 x 8mm End Hole 5-9 2

1 x 8mm End Hole (10m Pipe) 3-9 1

7 TESTING

7.1 DETECTORS

With the unit powered up and top cover removed the detectors can be tested

for functionality using methods described by the manufacturer e.g. aerosol

spray etc.

7.2 SYSTEM

The installed system must be checked with the top cover securely fitted.

As a minimum, smoke should be introduced to the furthest sampling point

from the ASD unit on each branch of the pipe. The choice of smoke source is

dependant on the installation but in all cases, the smoke must be present for

the duration of the test – aerosol sprays for point detectors do NOT work on

aspirated systems.

If it is possible to get close to the sampling point then a basic, functional

check can be carried out with smoke matches or lighted taper etc. but for

measurable performance, tests then refer to Appendix A of the BFPSA Code

of Practice for Aspirating Systems to select the appropriate test for the

installation.

8 MAINTENANCE

With normal use, the filter elements will eventually become contaminated

with dust particles, impeding airflow, and it is recommended that the filter

elements – order code FL55 - are changed every six months.

1. Remove the transparent cover using the special tool provided to unscrew

the tamper proof fasteners.

TESTING SHOULD ONLY BE CARRIED OUT BY QUALIFIED PERSONNEL.

BEFORE UNDERTAKING ANY TESTING ENSURE THAT THE PROPER

AUTHORITIES HAVE BEEN INFORMED AND THAT THE UNIT HAS BEEN

ISOLATED FROM THE FIRE CONTROL PANEL IF NECESSARY TO PREVENT

UNWANTED ALARMS

MAINTENANCE SHOULD ONLY BE CARRIED OUT BY QUALIFIED

PERSONNEL. BEFORE CARRYING OUT ANY MAINTENANCE, NOTIFY THE

PROPER AUTHORITIES AND ISOLATE UNIT FROM THE FIRE CONTROL

PANEL TO PREVENT UNWANTED ALARMS

2. Lift out the foam filter elements from the filter tube (tweezers or long nosed

pliers are recommended for this operation).

3. Fit a new filter element set ensuring that the coarse grade filter is inserted

into the tube first. Care should be taken to ensure that the filters are not

compressed during fitting and that the fine filter is positioned flush with the

top of the filter tube.

4. Replace the top cover

9 CEA 4022 CERTIFIED DETECTORS

The following detectors have been independently tested and certified for use

in the ASD1 unit. The table shows the limits that should not be exceeded if

the installation is to conform to this requirement. All figures are based on the

standard configurations shown in Section 5.8. Pipe lengths are 50m pipe

with a fan speed of 9 unless otherwise stated.

Detector Brand Detector Model Configuration 1

Sampling hole limits

Configuration 2

Sampling hole limits

APOLLO S65 Optical 1 x 8mm End Hole n/a

XP95 Optical 1 x 8mm End Hole n/a

DISCOVERY Optical

1 x 8mm End Hole n/a

DISCOVERY Optical

2 x 5mm Holes n/a

DETECTOMAT CT 3000 O 1 x 8mm End Hole n/a

PL 3200 O 1 x 8mm End Hole n/a

PL 3300 O 1 x 8mm End Hole n/a

GE SECURITY DP 331I 1 x 8mm End Hole n/a

DP 721I 3 x 4mm Holes n/a

DP 2061

6 x 4mm Holes n/a

DP 951 1 x 8mm End Hole n/a

HOCHIKI SLR-E3 1 x 8mm End Hole n/a

ALG-E 1 x 8mm End Hole n/a

SYSTEM SENSOR 2251EM

1 x 8mm End Hole n/a

2251EM

2 x 5mm Holes n/a

7251 PINNACLE

13 x 3mm,6mm end 8 x 3mm, 6mm end

7251 PINNACLE

75m Pipe –

11 x 3mm,6mm end

n/a

1) Using standard sensitivity alarm level of 55

2) Using pre-alarm sensitivity level of 45

3) Using high sensitivity mode

4) Using standard sensitivity alarm level of 2200



DETECTORS SHOULD BE SERVICED IN ACCORDANCE WITH THE

MANUFACTURERS RECOMMENDATIONS

5) Using high sensitivity alarm level of 1800

6) Using alarm level 3

7) Per branch

10 PROBLEM SOLVING

PROBLEM POSSIBLE SOLUTIONS

Power light flashing. Ensure supply to BATTERY connector within limits.

No lights on display.

Fan not running

Ensure supply leads correctly orientated. Ensure that

BAT FUSE correctly seated in socket and fuse not blown.

No lights on display.

Fan running OK.

Ensure ribbon cable fully seated into main & display

boards.

Flow HI/LO light on Ensure sampling pipes correctly installed, lid fitted and

box fully sealed. Ensure flow calibration procedure has

been carried out (Section 6.2). Ensure filters are clean

(Section 8)

Flow reading on

Bargraph display moves

erratically.

Decrease Flow sensitivity setting and re-calibrate air

flows (Section 6.2).

Flow reading on

Bargraph unresponsive

to broken/blocked pipes

Increase Flow sensitivity setting and re-calibrate air flows

(Section 6.2).

Detector(s)

unresponsive to smoke

tests

Ensure sampling pipe installed correctly and undamaged

(Section 5). Ensure that holes and pipe length do not

exceed limits for detector (Section 9). Ensure that

recommended baffles are fitted (Section 4.1). Ensure that

recommended test method is used (Section 7.2).

Increase fan speed and re-test.



SIGNIFICANT REDUCTIONS IN PIPE LENGTH MAY ALLOW THE FAN SPEED TO

BE REDUCED AND/OR NUMBER OF HOLES INCREASED. RESULTS OF SUCH

CHANGES MUST BE VERIFIED WITH THE PIPETRACER SOFTWARE.

OTHER DETECTORS AND PIPE LENTHS UP TO 100m MAY BE USED IF CEA 4022

CERTIFICATION IS NOT A REQUIREMENT. DESIGNS SHOULD BE VERIFIED

WITH THE PIPETRACER SOFTWARE TO ENSURE THAT THE PERFORMANCE IS

SUITABLE FOR THE INTENDED APPLICATION.

11 SPECIFICATIONS

11.1 TYPICAL SUPPLY CURRENT/FAN SPEED

Bargraph Value 0 1 2 3 4 5 6 7 8 9

Fan Speed 1 2 3 4 5 6 7 8 9 10

Current (mA) 110 120 130 150 170 190 220 235 265 300

Typical current consumption figures for different fan speeds. Results are based upon

an ASD2 installation with 10m of standard, 25mm aspirating pipe per channel. The

unit was powered from a 24V supply.

WEEE DIRECTIVE 2002/96/EC (Waste Electrical and Electronic

Equipment)

The symbol shown is marked on this product to indicate that it must not

be disposed of with other waste. Instead, it is the user’s responsibility to

dispose of their waste equipment by handing it over to a designated

collection point for the recycling of waste electrical and electronic

Number of Detectors

(not supplied)

1 or 2 Analogue Addressable or Conventional

Filtration 2 Stage, cartridge dust particle filter

Flow Monitoring

Thermal device, high and low thresholds. 10 element

bar graph indication. Loop or relay fault reporting.

Supply Voltage

18-30V DC (24V DC Nominal)

Maximum Supply Current

350mA @24V DC with no aspirating pipe. See table

below for typical Currents/Fan Speeds

Maximum Pipe Length

Up to 100 + 100 metres in Tee configuration (50m +

50m for CEA 4022) dependant on detector type &

application

Environmental Protection IP65 with exhaust fitted (IP53 without)

Operating Temperature -10 to 50ºC

Operating Humidity 10 to 95% RH (non-condensing)

Approvals CEA 4022 by VdS (G206066)

CE Certification

EN61000-6-3:2001(+A11:2004) (EMC)

EN60950-1:2006 (Safety)

equipment. The separate collection and recycling of your waste at the time of disposal will help

to conserve natural resources and ensure that it is recycled in a manner that protects human

health and the environment. For more information about where you can drop off your waste

equipment for recycling, please contact your local city office, your household waste disposal

service or where you purchased the product.

GLT Exports Limited,

Detection House,

72-78 Morfa Road,

Hafod,

Swansea,

SA1 2EN,

United Kingdom

Telephone +44 (0)1792 455175

Fax +44 (0)1792 455176

e-mail address: [email protected]

web site: www.zeta-alarms.co.uk

ASD1 Manual (CE) – Issue 10.0

Part No. 09-0101-10

Zeta ASD1 User manual

Brand: Zeta

Model: ASD1

Category: Security device components

Type: User manual

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